Pump construction and lubrication thereof



I. M. PHILLIPS ET AL 1,961,451

Filed Jan. 15, 1932 2 Sheets-Sheet l June 5, 1934.

PUMP CONSTRUCTION AND LUBRICATION THEREOF 3 5 5 my *7 2 H] 0 (5 T l 2 V0K 5 u J j 6 r4 Mr j M n" n 0 A Z I 3 mm m 2 2 m fi wa lmm June 1934- l.M. PHILLIPS ET AL 1,961,451

PUMP CONSTRUCTION AND LUBRIGATION THEREOF Filed Jan. 15, 1952 2Sheets-Sheet 2 Patented June 5, 1934 UNITED STATES PUMP CONSTRUCTION ANDLUBRICA-TION THEREOF Irving M. Phillips and Paul. W. Kalinsey, Chicago,

Ill., assignors to Continental Equipment Company, Chicago, 111., acorporation of Illinois Application January 15,

15 Claims.

This invention relates to reciprocating pumps and means for lubricatingthe piston and other parts thereof.

Generally stated, the object of the invention is to provide a novel andimproved construction and arrangement whereby lubricating oil is forcedthrough the pump shaft to the piston, and to the means for actuating thepiston, in a manner calculated to keep the parts well lubricated,

but without danger of flooding the interior of the pump withtoo muchoil.

It'is also an object to provide certain details and features ofconstruction and combinations tending to increase the generaleffieciency and the desirability of a pump piston lubricatingconstruction and system of this particular character.

To the foregoing and other useful ends, the invention consists inmatters hereinafter set go forth and claimed, and shown in theaccompanying drawings in which- Fig. 1 is a plan view of a pumpandlubricating system therefor embodying the principles of theinvention. 7

Fig. 2 is an enlarged section of the outer end portion of saidlubricating system.

Fig. 3 is a transverse section on line 33 in Fig.2 of the drawings.

Fig. 4 is a prespective of one, of the parts of the valve device whichcontrols the supply of oil to the pump.

. Fig. 51. is a perspective; of another portion of said, valve device.

Fig. 6 isan enlarged section on line 6-6 in Fig. 1 of the drawings.

.Fig. 7, is. a horizontal section on line 77 in Fig. 6 of the drawings.

Fig. 8:15 a transverse, section on line 88.in Fig. 6, of the drawings.

Fig. 9 is a perspective of the piston or plunger of the pump.

Asthus illustrated, the invention comprises a pump cylinder 1, of anysuitable known or approved character, having valve inlet and outletports of any suitable character. Within the said cylinder there is apiston or plunger comprising the two cylindrical sections 2 rigidly.connected together by the two web'sor walls 3 and 4, and by the rods 5and 6, asshown more clearly in Fig. 9of the drawings. The sections 2 arecup-shaped, preferably, as shown, with the interior of each cup facingthe adjacent cylinder head. The block 7 slides up and down between thewebs 3 and 4, and'between the bot- 55 tom wallsof the two cup-sectionsof the piston 1932, SerialNo. 586,904

or plunger, and the pump shaft 8' has its inner end provided with a ballbearing eccentric 9 engaging the block 7, whereby rotation of the shaftwill cause the piston or plunger to reciprocate within. the cylinder,the blocks '7 sliding up. and down during this action. The shaft 8, issupported in a lateral bearing 10v on the side of the pump cylinder, andis provided with a longitudinal bore or oil duct 11 terminating at thespace 12 within the block7, as shown more clearly in Fig. 7 of thedrawings. Oil ducts 13 are drilled through the opposite side walls ofthe block 7, as shown in'. Fig. '7, and oil forced through the duct 11will escape through the ball bearing, through the radial opening, in theouter ball race, through the ducts 13, and-lubricate the surfacesbetween the block '7 and the piston or plunger, and some of this oilwill drip to the bottom of the cylinder 1, and will in that waylubricate the piston or plunger within the cylinder.

The shaft 8 extends through the gear housing 14, and through thestufling box 15, as shown more clearly in Fig. 2 of the drawings. Theouter' end of this stuffing box has a removable cap 16, and alubricating oil feed pipe 1'7 is screwedinto the outer end of this cap,to feed oil to the interior of the cap. The disk-like member 18 isprovided with a threaded stem 19, which is screwed into the threadedsocket 20 formed in the end of the shaft 8, and this member. 18. isprovided with a. hole 21 extending through the thickness thereof,preferably at an angle, as shown in Fig. 2 of the drawings, said member18 having an oil duct 22 leading from this hole to the end of the stem19, in the manner shown, whereby oil forced in willeventually reach thepassage or oil duct 11 previously mentioned. A ball bearing 23, in thenature of a thrust bearing, is interposed between the end of. thestuffing box 15' and the marginal portion of the member 18, whereby thelatter rotates freely withv the shaft. A valve member 24, in the form ofa diskprovided. on its inner side or. face with a radial groove 25 andformed with a marginal notch 26, bears against the face, of themember18, inthe manner shown, and is provided with a short stem 27 engaged bythe spring 28, whereby the members 18and 24- are maintained in flatwiseengagement with each other. The stationary pin 29 engages the. notch 26,thereby to keep the member 24-from rotating. Each time the groove 25passes the opening21, oil is admitted to the passage or duct 22, fromthe body of oil maintained within the interior of the cap 16 previouslymentioned.

If the supply of oil to the pump, brought about in this manner, becomestoo great, the oil pressure Will open the safety valve 30 and allow theoil entering through the feed connection 17 to pass out of the cap 16through the outlet 31, and for this purpose the said safety valve isadjustable or adapted to be regulated by the screw 32 shown at the outerend of this device. In this way the pump is properly lubricated, butwithout danger of flooding the interior thereof with too much oil.

It will be understood that any suitable means can be employed forsupplying the oil under pressure to the feed connection 17, whereby theoil will be forced through the lubricating system to the interior of thepump.

The construction of the piston or plunger 'is advantageous, not only inthe manufacture thereof, but also in the use and operation of the pump.It is strong, but at the same time it is quite light, both of which areessential in a reciprocating pump of this kind; as the lightness of thepiston or plunger reduces vibration and the amount of power necessary todrive the pump at the required speed. A plate 33, which is held in placeby the spring ring 34, holds the ball bearing in the block '7 when theshaft 8 is disengaged from the piston or plunger, which is accomplishedby pulling the eccentric 'end of the shaft outwardly through the opening35 formed in the wall 4 of the plunger structure.

What we claim as our invention is:

1. In a pump, a driving shaft therefor, said shaft being provided with alongitudinal oil duct, and control devices at the outer end of saidshaft and operated thereby for feeding oil under pressure to said duct,comprising an oil reservoir into which the oil is admitted and intowhich the end of said shaft extends, thereby to supply oil to theinterior bearings of the pump for lubricating purposes, with a stuifingbox on said shaft between said devices and said pump.

2. A structure as specified in claim'l, said devices comprising a rotaryvalve member removably secured to and rigid with the shaft, having anoil passage communicating with said duct, and a stationary valve memberbearing fiatwise against said rotary valve member, provided with agroove disposed in position to intermittently communicate with said oilpassage in the rotary valve member, together with a housing forenclosing said valve devices in a body of the lubricating oil.

, 3. A structure as specified in claim 1, said devices comprising meansfor intermittently admitting oil to said oil duct.

4. A structure as specified in claim 1, comprising a safety valveadjacent said devices, adapted to open if the pressure in said. oil ductbecomes too great.

5. A structure as specified in claim 1, said devices comprising a rotaryvalve member screwed into the end of said shaft, a stationary valvemember fiatwise engaging the face of said rotary member, a springbearing against said stationary member to maintain the two members infiatwise engagement with each other, said members having co-operatingoil passages to intermittently admit oil to said oil duct in the shaft,and a stuffing box and housing for enclosing the end portion of saidshaft .and said devices, said housing forming a chamber for a body ofoil in which said devices operate.

6. In combination with a bearing to be lubricated, a lubrication devicetherefor comprising a rotary disk having a passage extending therefrom,with an opening in the face of the disk communicating with said passage,a stationary disk bearing against the face of said rotary disk, saidstationary disk having a groove in the face thereof communicatingintermittently with said opening, and means for maintaining a body oflubricating fluid around said disks, whereby said body of fluid isintermittently admitted through said groove and opening to said passage.

'7. A structure as specified in claim 6, said rotary disk being carriedon the end of the shaft having a longitudinal duct therein for thelubricating fluid, said duct leading to the bearing to be lubricated.

8. A structure as specified in claim 6, comprising a safety valveproviding an outlet for the fluid if the pressure thereof in said bodybecomes too great, thereby to prevent overlubrication of said bearing,while permitting re-circulation of the fluid into and out of the meansfor maintaining said body of fluid.

9. A structure as specified in claim 6, comprising a stationaryprojection for engaging an edge portion of said stationary disk, toprevent rotation thereof, and a spring for yieldingly holding thestationary disk fiatwise against the face of the rotary disk.

10. A structure as specified in claim 6, comprising a shaft providedwith a fluid duct communicating with said passage, said rotary diskhaving a threaded stem screwed into the end of said shaft.

11.'A structure as specified in claim 6, said groove being radiallydisposed on the face of said stationary disk, whereby the passage offiuid in said groove is from the outer edge of the stationary disktoward the center thereof, said opening being disposed a distance fromthe periphery of the rotary disk.

12. In combination with a machine to be lubricated, lubricating devicestherefor, said devices comprising a rotary valve member removablysecured to and rigid with the shaft, having an oil passage communicatingwith said duct, and a stationary valve member bearing fiatwise againstsaid rotary valve member, provided with a groove disposed in position tointermittently communicate with said oil passage in the rotary valvemember, together with a housing for enclosing said valve devices in abody of the lubricating oil.

13. In combination with a machine to be lubricated, lubricating devicestherefor, said devices comprising a rotary valve member screwed into theend of said shaft, a stationary valve member fiatwise engaging the faceof said r0- tary member, a spring bearing against said stationary memberto maintain the two members in fiatwise engagement with each other, saidmembers having co-operating oil passages to intermittently admit oil tosaid oil duct in the shaft, and a stufiing box and housing for enclosingthe end portion of said shaft and said devices, said housing forming achamber for a body of oil in which said devices operate.

14. In a pump, a driving shaft therefor, said shaft being provided witha longitudinal oil duct, and control devices atthe outer end of saidshaft and operated thereby for feeding oil under pressure to said duct,thereby to supply oil to the interior bearings of the pump forlubricating purposes, said devices comprising a rotary valve memberremovably secured to and rigid with the shaft, having an oil passagecommunicating with said duct, and a stationary valve member bearingflatwise against said rotary valve member, provided with a groovedisposed in position to intermittently communicate with said oil passagein the rotary valve member, together with a housing for enclosing saidvalve devices in a body of the lubricating oil.

15. In a pump, a driving shaft therefor, said shaft being provided witha longitudinal oil duct, and control devices at the outer end of saidshaft and operated thereby for feeding oil under pressure to said duct,thereby to supply oil to the interior bearings of the pump forlubricating purposes, said devices comprising a rotary valve memberscrewed into the end of said shaft, a stationary valve member flatwiseengaging the face of said rotary member, a spring bearing against saidstationary member to maintain the two members in flatwise engagementwith each other, said members having co-operating oil passages tointermittently admit oil to said oil duct in the shaft, and a stufiingbox and housing for enclosing the end portion of said shaft and saiddevices, said housing forming a chamber for a body of oil in which saiddevices operate.

IRVING M. PHILLIPS.

PAUL W. KALINSEY.

